<template>
  <div
    class="z-50 rounded-md w-full flex flex-1 flex-col"
    :class="{ 'pb-2': showArticles, 'justify-end': !showArticles }"
  >
    <div class="px-4 pt-4 w-full">
      <team-availability
        :available-agents="availableAgents"
        :has-conversation="!!conversationSize"
        :unread-count="unreadMessageCount"
        @start-conversation="startConversation"
      />
    </div>
    <div v-if="showArticles" class="px-4 py-2 w-full">
      <div class="p-4 rounded-md bg-white dark:bg-slate-700 shadow-sm w-full">
        <article-hero
          v-if="!articleUiFlags.isFetching && !articleUiFlags.isError && popularArticles.length"
          :articles="popularArticles"
          @view="openArticleInArticleViewer"
          @view-all="viewAllArticles"
        />
      </div>
    </div>
    <div v-if="articleUiFlags.isFetching" class="px-4 py-2 w-full">
      <div class="p-4 rounded-md bg-white dark:bg-slate-700 shadow-sm w-full">
        <article-card-skeleton-loader />
      </div>
    </div>
  </div>
</template>

<script>
import TeamAvailability from 'widget/components/TeamAvailability.vue';
import ArticleHero from 'widget/components/ArticleHero.vue';
import ArticleCardSkeletonLoader from 'widget/components/ArticleCardSkeletonLoader.vue';

import { mapGetters } from 'vuex';
import darkModeMixin from 'widget/mixins/darkModeMixin';
import routerMixin from 'widget/mixins/routerMixin';
import configMixin from 'widget/mixins/configMixin';

export default {
  name: 'Home',
  components: {
    ArticleHero,
    TeamAvailability,
    ArticleCardSkeletonLoader,
  },
  mixins: [configMixin, routerMixin, darkModeMixin],
  props: {
    hasFetched: {
      type: Boolean,
      default: false,
    },
    isCampaignViewClicked: {
      type: Boolean,
      default: false,
    },
  },
  computed: {
    ...mapGetters({
      channelConfig: 'appConfig/getChannelConfig',
      availableAgents: 'agent/availableAgents',
      activeCampaign: 'campaign/getActiveCampaign',
      conversationSize: 'conversation/getConversationSize',
      unreadMessageCount: 'conversation/getUnreadMessageCount',
      popularArticles: 'article/popularArticles',
      articleUiFlags: 'article/uiFlags',
    }),
    widgetLocale() {
      return this.$i18n.locale || 'en';
    },
    portal() {
      return this.channelConfig.portal;
    },
    showArticles() {
      return this.portal && !this.articleUiFlags.isFetching && this.popularArticles.length;
    },
    defaultLocale() {
      const widgetLocale = this.widgetLocale;
      const { allowed_locales: allowedLocales, default_locale: defaultLocale } = this.portal.config;

      // IMPORTANT: Variation strict locale matching, Follow iso_639_1_code
      // If the exact match of a locale is available in the list of portal locales, return it
      // Else return the default locale. Eg: `es` will not work if `es_ES` is available in the list
      if (allowedLocales.includes(widgetLocale)) {
        return widgetLocale;
      }
      return defaultLocale;
    },
  },
  mounted() {
    if (this.portal && this.popularArticles.length === 0) {
      const locale = this.defaultLocale;
      this.$store.dispatch('article/fetch', {
        slug: this.portal.slug,
        locale,
      });
    }
  },
  methods: {
    startConversation() {
      if (this.preChatFormEnabled && !this.conversationSize) {
        return this.replaceRoute('prechat-form');
      }
      return this.replaceRoute('messages');
    },
    openArticleInArticleViewer(link) {
      let linkToOpen = `${this.channelConfig.apiHost}/${link}?show_plain_layout=true`;
      const isDark = this.prefersDarkMode;
      if (isDark) {
        linkToOpen = `${linkToOpen}&theme=dark`;
      }
      this.$router.push({
        name: 'article-viewer',
        params: { link: linkToOpen },
      });
    },
    viewAllArticles() {
      this.openArticleInArticleViewer(`${this.channelConfig.apiHost}/hc/${this.portal.slug}/${this.defaultLocale}`);
    },
  },
};
</script>
